libmsquic
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Description:
Cross-platform, C implementation of the IETF QUIC protocol
Type: Formula  |  Latest Version: 2.5.6@0  |  Tracked Since: Dec 12, 2025
Links: Homepage  |  @MSFTQuic  |  formulae.brew.sh
Category: Networking
Tags: quic networking protocol http3 c-library
Install: brew install libmsquic
About:
libmsquic is Microsoft's cross-platform, high-performance C implementation of the QUIC and TLS protocols. It provides a robust foundation for building fast, secure, and reliable network connections, designed for both client and server applications. This library is optimized for low latency and high throughput, making it ideal for demanding cloud and edge scenarios.
Key Features:
  • Cross-platform C library (Windows, Linux, macOS, etc.)
  • High-performance with support for congestion control and pacing
  • Built-in TLS 1.3 security for encrypted communications
  • Supports multiple QUIC protocol features like 0-RTT and connection migration
Use Cases:
  • Building high-performance network clients and servers
  • Implementing custom protocols over QUIC
  • Accelerating data transfer in cloud-native applications
Alternatives:
  • ngtcp2 – ngtcp2 is another popular QUIC implementation, often used with OpenSSL or GnuTLS, whereas libmsquic aims for a self-contained, performance-focused solution.
  • quiche – quiche is Cloudflare's QUIC implementation written in Rust, offering memory safety guarantees, while libmsquic provides a C API for broader language interoperability.
Version History
Detected Version Rev Change Commit
Dec 12, 2025 2:46am 0 VERSION_BUMP e9a02f2c
Sep 11, 2025 11:27am 0 VERSION_BUMP 2d2f4183
Dec 3, 2024 7:52pm 0 VERSION_BUMP 0a9712c9
Nov 2, 2024 7:15pm 0 VERSION_BUMP 0ca4c4be